diff --git a/tools/cdk-build-tools/package.json b/tools/cdk-build-tools/package.json
index b8ff407bc883f..7a7601093e329 100644
--- a/tools/cdk-build-tools/package.json
+++ b/tools/cdk-build-tools/package.json
@@ -52,7 +52,7 @@
     "jsii": "^1.6.0",
     "jsii-pacmak": "^1.6.0",
     "nodeunit": "^0.11.3",
-    "nyc": "^15.0.1",
+    "nyc": "^15.1.0",
     "ts-jest": "^26.1.0",
     "tslint": "^5.20.1",
     "typescript": "~3.8.3",
diff --git a/yarn.lock b/yarn.lock
index 3434b584d847c..2ffe3ebe07aef 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4502,6 +4502,11 @@ get-caller-file@^2.0.1:
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
   integrity sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==
 
+get-package-type@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/get-package-type/-/get-package-type-0.1.0.tgz#8de2d803cff44df3bc6c456e6668b36c3926e11a"
+  integrity sha512-pjzuKtY64GYfWizNAJ0fr9VqttZkNiK2iS430LtIHzjBEr6bX8Am2zm4sW4Ro5wjWW5cAlRL1qAMTcXbjNAO2Q==
+
 get-pkg-repo@^1.0.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/get-pkg-repo/-/get-pkg-repo-1.4.0.tgz#c73b489c06d80cc5536c2c853f9e05232056972d"
@@ -5916,9 +5921,9 @@ js-tokens@^4.0.0:
   integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
 
 js-yaml@^3.13.1, js-yaml@^3.2.7:
-  version "3.13.1"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.13.1.tgz#aff151b30bfdfa8e49e05da22e7415e9dfa37847"
-  integrity sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==
+  version "3.14.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.14.0.tgz#a7a34170f26a21bb162424d8adacb4113a69e482"
+  integrity sha512-/4IbIeHcD9VMHFqDR/gQ7EdZdLimOvW2DdcxFjdyyZ9NsbS+ccrXqVWDtab/lRl5AlUqmpBx8EhPaWR+OtY17A==
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"
@@ -7148,10 +7153,10 @@ nyc@^14.0.0:
     yargs "^13.2.2"
     yargs-parser "^13.0.0"
 
-nyc@^15.0.1:
-  version "15.0.1"
-  resolved "https://registry.yarnpkg.com/nyc/-/nyc-15.0.1.tgz#bd4d5c2b17f2ec04370365a5ca1fc0ed26f9f93d"
-  integrity sha512-n0MBXYBYRqa67IVt62qW1r/d9UH/Qtr7SF1w/nQLJ9KxvWF6b2xCHImRAixHN9tnMMYHC2P14uo6KddNGwMgGg==
+nyc@^15.1.0:
+  version "15.1.0"
+  resolved "https://registry.yarnpkg.com/nyc/-/nyc-15.1.0.tgz#1335dae12ddc87b6e249d5a1994ca4bdaea75f02"
+  integrity sha512-jMW04n9SxKdKi1ZMGhvUTHBN0EICCRkHemEoE5jm6mTYcqcdas0ATzgUgejlQUHMvpnOZqGB5Xxsv9KxJW1j8A==
   dependencies:
     "@istanbuljs/load-nyc-config" "^1.0.0"
     "@istanbuljs/schema" "^0.1.2"
@@ -7161,6 +7166,7 @@ nyc@^15.0.1:
     find-cache-dir "^3.2.0"
     find-up "^4.1.0"
     foreground-child "^2.0.0"
+    get-package-type "^0.1.0"
     glob "^7.1.6"
     istanbul-lib-coverage "^3.0.0"
     istanbul-lib-hook "^3.0.0"